A method for assessing driver fatigue is implemented by a processor and includes steps of: based on images of a driver captured by an image capturing device, obtaining an entry of physiological information that indicates a physiological state of the driver； based on one of the images of the driver, obtaining an entry of facial expression information that indicates an emotional state of the driver； based on one of the images of the driver, obtaining an entry of behavioral information that indicates driver behavior of the driver； and based on the entry of physiological information, the entry of facial expression information and the entry of behavioral information, obtaining a fatigue score that indicates a level of fatigue of the driver.
